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Finding the Fourth Proportional to 325,441.72, 487,863.50 and 112,158.97

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Solution

The fourth proportional to 325,441.72, 487,863.50 and 112,158.97 is: 168,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,441.72 : 487,863.50 = 112,158.97 : x
  2. Step 2: Convert to fraction form
    325,441.72/487,863.50 = 112,158.97/x
  3. Step 3: Cross multiply
    325,441.72x = 487,863.50 × 112,158.97
  4. Step 4: Simplify right side
    325,441.72x = 54,718,267,709.63
  5. Step 5: Solve for x
    x = 54,718,267,709.63/325,441.72
  6. Step 6: Final answer
    x = 168,135.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.